186
Call disconnected or 
failed due to network
Once
Wrong number dialled.  No tone
DMO Entering
 
Once
DMO Exiting Once
Local site trunking 
—Entering/Exiting 
Once
Phone ring back (sending) Every three 
seconds, until the 
called user answers 
or call is rejected
Phone busy Every 0.5 seconds
Pressing the key to send 
the status to the 
dispatcher
Once
Status message sent to 
the dispatcher or failed
Once
Status message is not 
acknowledged by the 
dispatcher and the timer 
expires
Once
Incoming Calls
Your MTM800E received 
a Group Call without 
gateway. (setup only)
Once
High Priority Group Call 
received
Once
Emergency Alarm sent or 
received
Twice
Emergency Alarm failed Four times
Emergency Call received  Once
Phone ring (reception)
Full-duplex Private Call
According to the Ring Style 
sub-menu setting.
Until you answer or 
the call is rejected
 = High Tone;   = Low Tone
Description Type Repeated